condition	mean	min	max
4 h after light	8.724476666666666	8.68671	8.7758
8 h after light	8.915783333333334	8.59714	9.26495
12 h after light	9.17668	9.080639999999999	9.25079
4 h after dark	9.06292	8.80959	9.453619999999999
8 h after dark	9.12905	8.94172	9.4127
12 h after dark	9.09765	8.990210000000001	9.30492